Larimer County, CO
Alerts
Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.
In effect from Wednesday 04/22 10:00 AM MDT – Thursday 04/23 12:00 AM MDT
Issued by NWS Denver CO
Affected Area
Fire Weather Zones 214, 216, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250 and 251.
Timing
For the Red Flag Warning, from 10 AM Wednesday to midnight MDT Wednesday night. For the Fire Weather Watch, from Thursday morning through Thursday evening.
Winds
For the Red Flag Warning, west 20 to 30 mph with gusts up to 45 mph. For the Fire Weather Watch, northwest winds gusting up to 50 mph.
Relative Humidity
For the Red Flag Warning, 5 to 8 percent. For the Fire Weather Watch, as low as 10 percent.
Impacts
Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.
What to do
A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.
A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Areas impacted
- Central and Southeast Park County
- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet
- Larimer County Below 6000 Feet/Northwest Weld County
- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County
- Elbert/Central and East Douglas Counties Above 6000 Feet
- Northeast Weld County
- Central and South Weld County
- Morgan County
- Central and East Adams and Arapahoe Counties
- North and Northeast Elbert County Below 6000 Feet/North Lincoln County
- Southeast Elbert County Below 6000 Feet/South Lincoln County
- Logan County
- Washington County
- Sedgwick County
- Phillips County
In effect from Wednesday 04/22 10:00 AM MDT – Thursday 04/23 12:00 AM MDT
Issued by NWS Denver CO
Affected Area
Fire Weather Zone 215.
Timing
From 10 AM Wednesday to midnight MDT Wednesday night.
Winds
West 20 to 30 mph with gusts up to 45 mph.
Relative Humidity
5 to 8 percent.
Impacts
Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.
What to do
A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.
Areas impacted
- Larimer and Boulder Counties Between 6000 and 9000 Feet
In effect from Thursday 04/23 10:00 AM MDT – Thursday 04/23 8:00 PM MDT
Issued by NWS Denver CO
Affected Area
Fire Weather Zones 214, 216, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250 and 251.
Timing
For the Red Flag Warning, from 10 AM Wednesday to midnight MDT Wednesday night. For the Fire Weather Watch, from Thursday morning through Thursday evening.
Winds
For the Red Flag Warning, west 20 to 30 mph with gusts up to 45 mph. For the Fire Weather Watch, northwest winds gusting up to 50 mph.
Relative Humidity
For the Red Flag Warning, 5 to 8 percent. For the Fire Weather Watch, as low as 10 percent.
Impacts
Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.
What to do
A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.
A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
Areas impacted
- Central and Southeast Park County
- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet
- Larimer County Below 6000 Feet/Northwest Weld County
- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County
- Elbert/Central and East Douglas Counties Above 6000 Feet
- Northeast Weld County
- Central and South Weld County
- Morgan County
- Central and East Adams and Arapahoe Counties
- North and Northeast Elbert County Below 6000 Feet/North Lincoln County
- Southeast Elbert County Below 6000 Feet/South Lincoln County
- Logan County
- Washington County
- Sedgwick County
- Phillips County
Briefing
From the forecaster
Red Flag Warning Today
Created by the NWS Denver/Boulder WFO
Critical fire weather conditions will develop across the Front Range Foothills, South Park, I-25 Urban Corridor, and the eastern plains of Colorado today. The worst conditions can be expected from mid-late afternoon through the evening as southwest winds increase with gusts of 30-45 mph. The strongest winds will occur from South Park across the Palmer Divide area, spreading to the Front Range Foothills for the evening. The winds will combine with relative humidity values in the single digits to create conditions favorable for rapid wildfire spread. Avoid any activity that may produce a spark, and be ready to take swift action should a wildfire start closeby. Always follow instructions from local officials.
Seven-day weather risk overview
Daily weather risk summary
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